Streamwood, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Streamwood, a village in Cook County, Illinois.
Tonight
62°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 62. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Streamwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph ESE | 54% |
| Saturday | 76°F | Showers And Thunderstorms Likely | 5 to 15 mph SE | 90% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 80% |
| Sunday | 67°F | Showers And Thunderstorms | 10 to 15 mph NNE | 80% |
| Sunday Night | 55°F | Chance Rain Showers | 15 mph ENE | 54% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 45% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph ENE | 34% |
| Tuesday | 62°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Tuesday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 16% |
| Wednesday | 65°F | Partly Sunny | 5 to 10 mph NNE | 9% |
| Wednesday Night | 51°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph NNE | 4% |
| Friday | 70°F | Mostly Sunny | 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Streamwood (42.021, -88.178). Updated through the day.
Growing snapshot for Streamwood
Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5b
More local growing data for Streamwood: nearby ZIP 60107 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Streamwood, Il (0.3 mi from Streamwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.